... , Solid, Durable,Safe Autoclavable handpiece, Battery powered The Economic Series products are featured by reliability, solidity, higher performance and cost ... a canula diameter of 4.2 mmGearless control drilling speed >600 rpm.Torque: >4.0N/M; Noise: <65db; Temp. rise ... ~60 Hz.Gross Weight: 1.3kg. Electric Cannulate Drill (EC Series) / Surgical Wire, Pin and Hollow Drill /Higher Torque Orthopedic ...